Hello, I have a 99 f150, 4.2, 147,600 miles, all stock and starting to surge at idle. From reading other posts, I am sure I need plugs...and wires. Then i read that the plugs break when removing?????
Any thoughts or direction will ba appreciated....I prefer to do my own work,dealers are way to expensive.
Thanks

 

Welcome! The breaking plug problem only pertains to the 5.4 3v engine from 2004-early 2008. You're safe.

 

Now that is good news!!!
Thanks

 

Just go back with a good quality plug. I don't think you can beat Motorcraft for Ford trucks.

 

Welcome!

I've never had a problem breaking a plug on the V6. One thing to watch out for is make sure you keep your plug wires in the right order. On your coil pack, cylinders 1 -4 are in the same orientation as your motor, but cylinders 5 & 6 are reversed for some reason.

Absolutely get Motorcraft plugs for these motors. I am one of many that put in Bosch and regretted it (had one fail at less than 20,000 miles). I was skeptical of the Bosch problem reports until it happened to me. For whatever reason, these motors and ignitions do not like Bosch spark plugs!